Depends on what you want.
'Ohana is served family style so there are less food choices.
1900 Park Fare is a buffet.
They have different characters.
'Ohana-Lilo and Stitch, Mickey and Pluto.
1900 PF-Mary Poppins, Alice, Mad Hatter, Winnie the Pooh and (Piglet or Tigger) were there when I went in 2008.